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[SCSI] ips: PCI API cleanups 

* pass Scsi_Host to ips_remove_device() via pci_set_drvdata(),
  allowing us to eliminate the ips_ha[] search loop and call
  ips_release() directly.

* call pci_{request,release}_regions() and eliminate individual
  request/release_[mem_]region() calls

* call pci_disable_device(), paired with pci_enable_device()

* s/0/NULL/ in a few places

* check ioremap() return value

Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Jeff Garzik 2007-12-13 16:14:09 -08:00 committed by James Bottomley
parent 2f277d6a71
commit 21e1a5f26c
1 changed files with 31 additions and 41 deletions
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72
drivers/scsi/ips.c
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@ -702,10 +702,6 @@ ips_release(struct Scsi_Host *sh)
/* free extra memory */
ips_free(ha);
/* Free I/O Region */
if (ha->io_addr)
release_region(ha->io_addr, ha->io_len);
/* free IRQ */
free_irq(ha->pcidev->irq, ha);
@ -4394,8 +4390,6 @@ ips_free(ips_ha_t * ha)
ha->mem_ptr = NULL;
}
if (ha->mem_addr)
release_mem_region(ha->mem_addr, ha->mem_len);
ha->mem_addr = 0;
}
@ -6880,20 +6874,14 @@ ips_register_scsi(int index)
static void __devexit
ips_remove_device(struct pci_dev *pci_dev)
{
int i;
struct Scsi_Host *sh;
ips_ha_t *ha;
struct Scsi_Host *sh = pci_get_drvdata(pci_dev);
for (i = 0; i < IPS_MAX_ADAPTERS; i++) {
ha = ips_ha[i];
if (ha) {
if ((pci_dev->bus->number == ha->pcidev->bus->number) &&
(pci_dev->devfn == ha->pcidev->devfn)) {
sh = ips_sh[i];
ips_release(sh);
}
}
}
pci_set_drvdata(pci_dev, NULL);
ips_release(sh);
pci_release_regions(pci_dev);
pci_disable_device(pci_dev);
}
/****************************************************************************/
@ -6947,12 +6935,17 @@ module_exit(ips_module_exit);
static int __devinit
ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
{
int uninitialized_var(index);
int index = -1;
int rc;
METHOD_TRACE("ips_insert_device", 1);
if (pci_enable_device(pci_dev))
return -1;
rc = pci_enable_device(pci_dev);
if (rc)
return rc;
rc = pci_request_regions(pci_dev, "ips");
if (rc)
goto err_out;
rc = ips_init_phase1(pci_dev, &index);
if (rc == SUCCESS)
@ -6968,6 +6961,19 @@ ips_insert_device(struct pci_dev *pci_dev, const struct pci_device_id *ent)
ips_num_controllers++;
ips_next_controller = ips_num_controllers;
if (rc < 0) {
rc = -ENODEV;
goto err_out_regions;
}
pci_set_drvdata(pci_dev, ips_sh[index]);
return 0;
err_out_regions:
pci_release_regions(pci_dev);
err_out:
pci_disable_device(pci_dev);
return rc;
}
@ -7000,7 +7006,7 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
METHOD_TRACE("ips_init_phase1", 1);
index = IPS_MAX_ADAPTERS;
for (j = 0; j < IPS_MAX_ADAPTERS; j++) {
if (ips_ha[j] == 0) {
if (ips_ha[j] == NULL) {
index = j;
break;
}
@ -7037,32 +7043,17 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
uint32_t base;
uint32_t offs;
if (!request_mem_region(mem_addr, mem_len, "ips")) {
IPS_PRINTK(KERN_WARNING, pci_dev,
"Couldn't allocate IO Memory space %x len %d.\n",
mem_addr, mem_len);
return -1;
}
base = mem_addr & PAGE_MASK;
offs = mem_addr - base;
ioremap_ptr = ioremap(base, PAGE_SIZE);
if (!ioremap_ptr)
return -1;
mem_ptr = ioremap_ptr + offs;
} else {
ioremap_ptr = NULL;
mem_ptr = NULL;
}
/* setup I/O mapped area (if applicable) */
if (io_addr) {
if (!request_region(io_addr, io_len, "ips")) {
IPS_PRINTK(KERN_WARNING, pci_dev,
"Couldn't allocate IO space %x len %d.\n",
io_addr, io_len);
return -1;
}
}
/* found a controller */
ha = kzalloc(sizeof (ips_ha_t), GFP_KERNEL);
if (ha == NULL) {
@ -7071,7 +7062,6 @@ ips_init_phase1(struct pci_dev *pci_dev, int *indexPtr)
return -1;
}
ips_sh[index] = NULL;
ips_ha[index] = ha;
ha->active = 1;